排序方式: 共有36条查询结果,搜索用时 156 毫秒
1.
2.
3.
Rajesh Kumar G Mrudula Spurthi K Kishore Kumar G Mohanalatha Kurapati Saraswati M Mohini Aiyengar T Chiranjeevi P Srilatha Reddy G Nivas S Kaushik P Sanjib Sahu K Surekha Rani H 《PloS one》2015,10(3)
Background
Coronary Artery Disease (CAD) is clearly a multifactorial disease that develops from childhood and ultimately leads to death. Several reports revealed having a First Degree Relatives (FDRS) with premature CAD is a significant autonomous risk factor for CAD development. C - reactive protein (CRP) is a member of the pentraxin family and is the most widely studied proinflammatory biomarker. IL-18 is a pleiotrophic and proinflammatory cytokine which is produced mainly by macrophages and plays an important role in the inflammatory cascade.Methods and Results
Hs-CRP levels were estimated by ELISA and Genotyping of IL-18 gene variant located on promoter -137 (G/C) by Allele specific PCR in blood samples of 300 CAD patients and 300 controls and 100 FDRS. Promoter Binding sites and Protein interacting partners were identified by Alibaba 2.1 and Genemania online tools respectively. Hs-CRP levels were significantly high in CAD patients followed by FDRS when compared to controls. In IL-18 -137 (G/C) polymorphism homozygous GG is significantly associated with occurrence of CAD and Hs-CRP levels were significantly higher in GG genotype subjects when compared to GC and CC. IL-18 was found to be interacting with 100 protein interactants.Conclusion
Our results indicate that Hs-CRP levels and IL-18-137(G/C) polymorphism may help to identify risk of future events of CAD in asymptomatic healthy FDRS. 相似文献4.
Rotolo JA Zhang J Donepudi M Lee H Fuks Z Kolesnick R 《The Journal of biological chemistry》2005,280(28):26425-26434
Recent evidence suggests clustering of plasma membrane rafts into ceramide-enriched platforms serves as a transmembrane signaling mechanism for a subset of cell surface receptors and environmental stresses (Grassme, H., Jekle, A., Riehle, A., Schwarz, H., Berger, J., Sandhoff, K., Kolesnick, R., and Gulbins, E. (2001) J. Biol. Chem. 276, 20589-20596; Cremesti, A., Paris, F., Grassme, H., Holler, N., Tschopp, J., Fuks, Z., Gulbins, E., and Kolesnick, R. (2001) J. Biol. Chem. 276, 23954-23961). Translocation of the secretory form of acid sphingomyelinase (ASMase) into microscopic rafts generates therein the ceramide that drives raft coalescence. This process serves to feed forward Fas activation, with approximately 2% of full caspase 8 activation sufficient for maximal ASMase translocation, leading to death-inducing signaling complex formation within ceramide-rich platforms, and apoptosis. Here we report that treatment of Jurkat T cells with UV-C also induces ASMase translocation into rafts within 1 min, catalyzing sphingomyelin hydrolysis to ceramide and raft clustering. In contrast to Fas, UV-induced ASMase translocation and activation were caspase-independent. Nonetheless, ceramide-rich platforms promoted UV-C-induced death signaling, because ASMase inhibition or raft disruption inhibited apoptosis, improving clonogenic cell survival. These studies thus define two distinct mechanisms for biologically relevant ASMase activation within rafts; a Fas-mediated mechanism dependent upon caspase 8 and FADD, and a UV-induced mechanism independent of caspase activation. Consistent with this notion, genetic depletion or pharmacologic inhibition of caspase 8 or FADD, which render Jurkat cells incapable of sphingolipid signaling and apoptosis upon Fas ligation, did not impair these events upon UV-C stimulation. 相似文献
5.
Joshi K Lad S Kale M Patwardhan B Mahadik SP Patni B Chaudhary A Bhave S Pandit A 《Prostaglandins, leukotrienes, and essential fatty acids》2006,74(1):17-21
Considerable clinical and experimental evidence now supports the idea that deficiencies or imbalances in certain highly unsaturated fatty acids may contribute to a range of common developmental disorders including Attention Deficit Hyperactivity Disorder (ADHD). Few intervention studies with LCPUFA supplementation have reported inconsistent and marginal results. This pilot study evaluates the effect of alpha linolenic acid (ALA)-rich nutritional supplementation in the form of flax oil and antioxidant emulsion on blood fatty acids composition and behavior in children with ADHD. Post-supplementation levels of RBC membrane fatty acids were significantly higher than pretreatment levels as well as the levels in control. There was significant improvement in the symptoms of ADHD reflected by reduction in total hyperactivity scores of ADHD children derived from ADHD rating scale. 相似文献
6.
Polacrilin Potassium NF is a commonly used weak cation exchange resin disintegrant in pharmaceutical tablets. The objective
of this research was to evaluate the effects of sorbed moisture on physical characteristics and disintegrant performance of
four brands of Polacrilin Potassium NF. The disintegrants were stored in five different relative humidity chambers and their
dynamic vapor adsorption–desorption analysis, effect of moisture on their compressibility, compactability, particle size,
morphology, water uptake rate, and disintegration ability were studied. Moisture seemed to plasticize the disintegrants, reducing
their yield pressures. However, certain optimum amount of moisture was found to be useful in increasing the compactablity
of the tablets containing disintegrants. The tablets, however, lost their tensile strengths beyond this optimum moisture content.
Moisture caused two brands of the disintegrants to swell; however, two other brands aggregated upon exposure to moisture.
Swelling without aggregation increased the water uptake, and in turn the disintegrant performance. However, aggregation probably
reduced the porosities of the disintegrants, reducing their water uptake rate and disintegrant performance. Different brands
of Polacrilin Potassium NF differed in the abilities to withstand the effects of moisture on their functionality. Effect of
moisture on disintegrant performance of Polacrilin Potassium NF needs to be considered before its use in tablets made by wet
granulation. 相似文献
7.
Cardamom is an important spice, condiment and medicine, and international commodity. DNA-based molecular profiling will be
aid in protecting the intellectual property rights of those who trade cardamom on the world market. Commercial cardamom has
so far proven recalcitrant to traditional DNA extraction methods. In this paper we report a protocol for the isolation of
amplifiable genomic DNA from traded cardamom. The method involves a modified CTAB (hexadecyltrimethylammonium bromide) extraction
step, followed by a purification step to remove polysaccharides, proteins, and polyphenols, which are abundant in storage
tissue such as cardamom capsules. The yield of DNA was 6–7 μg g−1 tissue. Spectrophotometric and electrophoretic analysis indicated that the isolated DNA was highly pure and of high molecular
weight. The isolated DNA could be amplified using different random decamer primers. The protocol has trade implications as
it will help in the PCR-based characterisation of traded cardamom. This protocol can be further extended to develop Sequence
Characterised Amplified Regions (SCAR) markers for profiling cardamoms. 相似文献
8.
Gravitt PE Paul P Katki HA Vendantham H Ramakrishna G Sudula M Kalpana B Ronnett BM Vijayaraghavan K Shah KV;CATCH Study Team 《PloS one》2010,5(10):e13711
Background
While many studies have compared the efficacy of Pap cytology, visual inspection with acetic acid (VIA) and human papillomavirus (HPV) DNA assays for the detection cervical intraepithelial neoplasia and cancer, few have evaluated the program effectiveness.Methods and Findings
A population-based sample of 5603 women from Medchal Mandal in Andhra Pradesh, India were invited to participate in a study comparing Pap cytology, VIA, and HPV DNA screening for the detection of CIN3+. Participation in primary screening and all subsequent follow-up visits was rigorously tracked. A 20% random sample of all women screened, in addition to all women with a positive screening test result underwent colposcopy with directed biopsy for final diagnosis. Sensitivity, specificity, positive and negative predictive values were adjusted for verification bias. HPV testing had a higher sensitivity (100%) and specificity (90.6%) compared to Pap cytology (sensitivity = 78.2%; specificity = 86.0%) and VIA (sensitivity = 31.6%; specificity = 87.5%). Since 58% of the sample refused involvement and another 28% refused colposcopy or biopsy, we estimated that potentially 87.6% of the total underlying cases of CIN3 and cancer may have been missed due to program failures.Conclusions
We conclude that despite our use of available resources, infrastructure, and guidelines for cervical cancer screening implementation in resource limited areas, community participation and non-compliance remain the major obstacles to successful reduction in cervical cancer mortality in this Indian population. HPV DNA testing was both more sensitive and specific than Pap cytology and VIA. The use of a less invasive and more user-friendly primary screening strategy (such as self-collected swabs for HPV DNA testing) may be required to achieve the coverage necessary for effective reduction in cervical cancer mortality. 相似文献9.
P. Rama Mohan Reddy S. Mrudula B. Ramesh Gopal Reddy G. Seenayya 《Bioprocess and biosystems engineering》2000,23(2):107-112
The optimization of parameters for the effective leaching of thermostable pullulanase from Clostridium thermosulfurogenes SV2-fermented bran was carried out using response surface methodology based on the central composite rotatable design. The design contains a total of 54 experimental trials with the first 32 organized in a fractional factorial design and experimental trials from 33-40 and 51-54 involving the replication of the central points. The design was employed by selecting solvent to wheat bran ratio (S/BB), process temperature, solvent pH, shaking (RPM) and contact time (h) as model factors. Among the five independent variables studied, the S/BB, solvent pH and shaking were found to be significant. S/BB ratio of 9.0, 200 RPM shaking and solvent pH 6.0 were identified as optimum for the leaching of thermostable pullulanase from the strain SV2-fermented bran. 相似文献